Web splicing device



Feb. 21, 1939.

H. A. W. WOOD WEB SPLICING DEVICE Original Filed Aug. 22, 1933 13Sheets-Sheet 1 Wavy/47366 Waacz fWM Original Filed Aug. 22, 1933 15Sheets-Sheet 2 Feb. 21, 1939. H. A. w. WOOD WEB SPLICI NG DEVICEOriginal Filed Aug. 22, 1933 13 Sheets-Sheet 3 /z 67 17/174 we 1939. H.A. w. WOOD 2,148,094

WEB SPLICING DEVICE I Original Filed Aug. 22, 1933 13 Sheets-Sheet 5Feb. 21, 1939. H w WOOD 2,148,094

WEB SFLICING DEVICE Original Filed Aug. 22, 1933 13 Sheets-Sheet 6Illlllllllllillllllll 13 Sheets-Sheet '7 H. A. W. WOOD WEB SPLICINGDEVICE Original Filed Aug. 22, 1935 Feb. 21, 1939.

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WEB SPLICING DEVICE Original Filed Aug. 22, 1953 15 Sheets-Sheet 1O Z57e/zv" "Egg Y4 WJeWZ AM KM Feb. 21, 1939. H. A. w. WOOD WEB SPLICI NGDEVICE Original Filed Aug. 22, 1933 13 Sheets-Sheet ll Feb. 21, 1939. H.A. w. WOOD 2,

WEB SPLICING DEVICE Original Filed Aug. 22, 1952 15 sheewsheet 12 20ofileasw-by 7Ffay gal/Z212.

Feb. 21, 1939. H. A. w. WOOD WEB SPLICING DEVICE Original Filed Aug. 22,1953 13 Sheets-Sheet l3 libel/fatal Patented Feb. 21, 1939 UNITED STATESPATENT OFFICE WEB SPLICIN G DEVICE Application August 22, 1933, SerialNo. 686,225 Renewed May 5, 1936 24 Claims. (01. 242-58) This is animprovement on my prior applications for patent, Serial No. 591,077,filed February 5, 1932, now Patent No. 2,048,767, and Serial No.610,748, filed May 12, 1932, now Patent 5 1,957,122, and contains mattershown and claimed therein.

The chief objects of this invention are to provide a simplified drivefor speeding up the fresh roll preparatory to splicing; to provide aonel point clutch on each spindle of the roll supporting device with asingle magnetic clutch in the drive shaft outside the spindle, therebypermitting the use of a single commutator to determine the point atwhich the brush is dropped to bring the run- 15 ning web against thefresh roll; to provide for automatically selectively engaging theparticular clutch which is carried on the incoming roll spindle so that,asthe fresh roll is brought into the running roll position aftersplicing, this clutch is 20 automatically disengaged; to provide alatch, such that, when the reel is run in the reverse direction, theclutch is prevented from reengaging so that possible damage iseliminated should the running roll be brought up to approximately thefresh 25 roll pasting position; to provide a new type of switchmechanism for locating the roll prior to pasting in its proper positionwith respect to the brush, the position of which is controlled by themeasuring arm as it sets the variable speed device, thus permittingoperation of the reel stopping device to locate the roll by a projectionon the reel proper; to provide this means for eliminating the necessityfor operating a switch by the surface of the roll, the toe of whichswitch, in said Patent No. 2,048,767, had to be moved out of the path ofthe web before splicing could be accomplished; to provide a simplifiedbrush arm since all the monkey switch mechanism is removed therefrom; toprovide a further simplified action of the brush arm by a mechanismwhich resets the brush and web severing knife through action of the armfrom operative to inoperative position, and to reduce the cost of themachine. 45 Other objects and advantages of the invention will appearhereinafter.

Reference is to be had to the accompanying drawings, in which Fig. l isan end view of a machine constructed in accordance with this inventionin the form of an ordinary type of rotatable reel for carrying webrolls;

Fig. 2 is an elevation of the same;

Fig. 3 is an end elevation of the roll support, 55 showing a simplifiedconstruction;

Fig. 4 is a sectional view on the line 4-4 of Fig.

Fig. 5 is a longitudinal section of one end of the spindle drive;

Fig. 6 is an end view of the same as indicated by 5 the arrow 6 in Fig.5;

Fig. 7 is a view looking in the direction of the arrow 1 in Fig. 3;

Fig. 8 and Fig. 9 are side and end views of the one-point clutch; 10

Fig. 10 is a sectional view showing the latch for holding the clutch outof engagement after past- Fig. 11 is an elevation of the cam cooperatingtherewith;

Fig. 12 is a plan partially in section of the magnetic clutcharrangement;

Fig. 13 is an elevation of the same;

Fig. 14 is a view partially in section showing the selector rings forfeeding the magnetic clutch;

Fig. 15 is an end view showing the manner in which the paste positioningswitch is adjusted to regulate the stopping of the reel;

Fig. 16 is an elevation of the same, partly in section, as indicated bythe arrow I6 in Fig. 15; a

Fig. 17 is an elevation of the brush lifting and lowering mechanism;

Fig. 18 is a front elevation of a part of the brush supporting arm;

Fig. 19 is a similar view of the end oi the brush supporting arm;

Fig. 20 is an edge view of the same showing the parts in loweredposition;

Fig. 21 is a similar view partly in section showing the cooperation ofthe tension straps with the brush arm;

Fig. 22 is a similar view showing the brush moved back to its extremeposition;

Fig. 23 is a similar view showing the brush unlatched;

Fig. 24 is a similar view showing the knife operating solenoid;

Fig. 25 is a view similar to the lower part of Fig.

21 showing the unlatching of the rod which actuates the brushes on theiraxes;

Fig. 26 is a view of the connections between the shaft carrying thebrushes and that carrying the knives;

Fig. 27 is an end view of the clutch used at this point;

Fig. 28 is a sectional view on the line 28-48 of Fig. 17;

Fig. 29 is a view of the drive operated by the brush operating motor,and

Fig. 30 and Fig. 31 are wiring diagrams which 5 together constitute asingle diagram of the electrical connections for the entire machine.

As stated, this invention relates to a web splicing device and is shownas built along the same lines as that described in the first of my abovementioned patents and involves modifications of certain parts,particularly the manner in which a magnetic clutch is used to start upthe first roll and the manner in which the reel is positioned just priorto splicing. The machine is simplified by eliminating the necessity ofthe so-called monkey switches and of their wiring in the aboveidentified patent. The machine accomplishes the objects of said patentbut in a simplified manner and some of the features of said applicationare shown herein in detail but are not claimed except in combinationbecause they constitute the subject matter of said Patent No. 2,048,767.

Referring to Figs. 1 and 2, it is evident that brackets I and 2 securedto press columns 3 provide rotatable supports for bearings 4 and 5respectively. A central shaft 6 is mounted in and rotates with bearings4 and 5, thereby providing a rotatable support for spiders I and 8.. Themanner in which these spiders are rotated by motor 9 and adjusted forside register and varying roll widths by motor In is fully described insaid Patent No. 1,957,122.

As described in said former case movable spindles II and stationaryspindles I2 provide rotatable mountings for a running roll R and spareroll S. The particular construction shows means for mounting three suchrolls in this reel but it is not intended to limit this case to anyparticular number, since it is entirely possible to use this device witha reel which carries two or more paper rolls. Tension members areprovided to operate against the running roll R in the form of straps I3,one end of each of which is secured to removable hook l4 partiallyencircling a shaft l5 which is carried in brackets l8 secured to thefoundation. The other end of straps l3 are severally connected to leversI! which are pivoted in brackets I 8 secured to the frame of the pressand carry at their outer ends pivotally connected weight rods IS onwhich are placed removable weights 2!) to secure the desired tension inweb W.

For executing the splice at the proper time web pressing devices orbrushes 2|, secured to arms 22, 22 and 22 which are pivotally mounted onbrush arm 23, operate between and around tension straps l3 to press theweb W against the fresh roll S which carries a prepasted leading end.Knife 24 is pivotally mounted on brush arm 23 and at the proper timeoperates between and around straps I3 to sever the old web after thesplice has been accomplished. When the running roll R has diminished insize until the operator judges that a splice will soon be necessary,brush arm 23, which normally is in the inoperative position, as shown bydotted lines in Fig. 1, is lowered to the full line operative positionby the pressing of a push button, as will be described later. Thelowering of this brush arm sets up a sequence of operations whereby thefresh roll S is rotated up to speed through a drive brought in from thepress proper to the particular spindle which carries the fresh roll S.The drive of this fresh roll is accomplished through a spindle l2 toprevent any disturbance to the surface of the fresh roll which carriesthe prepasted points, a speed setting device having previously adjustedthe rotation of this fresh roll according to its diameter so that theperiphery is running substantially at surface speed of the web W.

When the running roll R is virtually exhausted, another push button ispressed by the operator and the brushes 2| press the web W against thefresh roll S to make the splice after which the knife 24 severs the oldweb. The brush arm 23 is then raised, by the operation of a motor, tothe inoperative position and the fresh roll, which has now become therunning roll, is moved against the tension straps [3 by rotation of thereel. In said previous case a magnetic clutch was carried on each of thespindles l2 to thereby select the particular spindle carrying the freshroll. This necessitated electrical contacts and selector rings on thespider and due to bulkiness of the magnetic clutch prevented a designwhich could be worked in restricted space. While the net resultaccomplished with this invention is essentially the same as that in saidcase, the method of accomplishing it is much simpler and less expensiveto produce.

Referring particularly to Figs. 3, 4, 5 and 6, reel shaft 5 is mountedin bearing box 5 and carries spider 8 splined thereto to preventrotation with respect to the shaft but to permit longitudinal adjustmentwith respect to shaft 6 through the use of screw 25 and a split nutdisconnecting arrangement described in said Patent No. 1,957,122. Theend plate 26 is secured by screws 2!; to end bracket 21 which, throughguide bracket I26, secured thereto and operating in a slot of brace 29,secures these parts with respect to rotation of shaft 6 and spider 8 butpermits longitudinal movement of the entire bracket and end platearrangement to compensate for side register and to adjust for differentwidth rolls. Brace 29 is secured to the frame of the press. End plate 26is held in proper relation with spider 8 by covers 30, one on each ofthe three spider arms, having projecting edges over the outsideperiphery of end plate 26. This permits rotation of spider 8 and covers30 by holding plate 26 and its attached bracket 21 in longitudinalrelationship.

Drive for the fresh roll is brought in from the press through themagnetic clutch and a vari able speed device IOI to shaft 3| on which ismounted bevel gear 32 by a spline running longitudinally of the shaft. Amovable gear bracket 33, through ball bearings 34, provides a mountingfor bevel gear so that it is kept in proper relationship with itsmeshing gear 32. Bevel gear 35, through ball bearing 36, is mounted inbracket 33 and is splined to vertical shaft 31, bracket 33 beingslidably mounted in a hole of end bracket 21. The purpose of thisadjustable mounting is to insure proper meshing of gears 32 and 35 eventhough shaft 6 may sag under the weight of heavy paper rolls, andthereby gives a well-designed drive down to vertical shaft 31. The lowerend of shaft 31 is mounted in end bracket 21, by ball bearings 21, andcarries a bevel gear 38 which meshes with bevel gear 39 carried on shortshaft 40. The other end of the shaft 40 carries pinion 4| securedthereto. Shaft 40 is mounted in ball bearings which are carried inbracket 21. Pinion 4| meshes with gear 42 which is secured to large gear43 which is rotat ably mounted on bushing 43* carried on spider 8 andconcentric therewith. Large gear 43 meshes with a gear 44 loose on aspindle 48, one each of which is supplied for each spindle l2. Gear 44is secured to clutch member 45 the latter of which is rotatably mountedon ball is carried on sleeve 41 secured to spindle shaft. 1

ball earings 49 and 58 and its end motion is cont oiled by the clampingof the outer race of ball bearings 58 by seal 5| secured to the spiderproper. The inner race of ball bearing 58 bears against a shoulder; ofspindle shaft 48 in cooperation with inner seal 52, spacer 53, innerseal 54, inner race of ball bearing 49, spacer 55, inner race of ballbearing 46 and sleeve 41. All of these are clamped with nut 56 which isthreadedly attached to the end of spindle shaft 48. It will be seen thatspindle I2 is attached to spindle shaft 48 and provides a suitablemounting for the end of the paper roll core. Screw 51 is secured inspindle I2 and thereby provides a suit able key for fitting in thekeyway of the paper roll core and in this manner insures driving thepaper roll when power is applied to spindle I2.

Movable clutch 58 is slidably mounted on sleeve 41 and splined theretoby a spline 58. It carries 48. Fpindle shaft 48 is mounted in spider 8by a circumferentialslot 59 in which are mounted slidable shoes 68. 'Theslidable shoes 68 are pivotally mounted in yoke 6| by studs 62 and 63,the latter of which is longer than stud 62, permitting the pivotalmounting of a latch 64 which projects through an opening in cover 38.Yoke 6| is secured to rock shaft 65 which is rotatably mounted, one ineach of the projecting arms of spider 8, carrying secured on one end acollar 66 and on the other a spring arm 61. These prevent anylongitudinal motion of shaft 65. The outer end of arm 61 is bifurcatedand through a pin 68 secures one end of spring 69.- The other erid issecured by a small bracket 18 t the main portion of spider 8. This tendsto turn shaft 65 in a clockwise direction as viewed in Figs.'4 and suchthat the faces of clutches 58 and .45 will engage. These clutch facesare so designed as shown in Figs. 8 and 9 that engagement is possible atonly one particular point in their relative rotational positions.

The lower end of yoke 8| carries a roller 1| rotatably secured theretoby stud 12 with the roller bearing against cam 13 which is secured toend plate 26 by screws,14. On Fig. 3 it will be noticed that at point Athe cam 13 is cut away in such a way that yoke 6| is permitted to rotatein a clockwise direction, thereby engaging the one-point clutch. Thisclutch engagement is permitted until the spider is rotated to such aposition that roller 1| rides up'on cams 13 at point B at which time theclutch is disengaged. Latch I54 is pulled in a counterclockwisedirection by spring 15, one end of which is secured thereto, the otherend of which is secured to yoke 6|. As cam roller 1| rides up on cam 13at point B the tooth of latch 64 cooperates with block 18 secured to theinner face of cover 38 as demonstrated in Fig. 10. Thus, if the reel isrotated in a clockwise direction, as viewed in Fig. 3, after havingpassed up over the point B latch 64 will prevent the clutch teeth frombeing re-cngaged. When, however, this spindle has made a cycle ofrevolution in a counterclockwise direction, as viewed in Fig. 3, and thecam roller 1I passes over point A it is necessary to release this latch64 before the clutch teeth are permitted to engage. This is done by asmall block 11 secured to end parts.

while the spindle is running at full speed the clutch teeth cannotengage and cause damage. It is evident that when in normal operation theclutch teeth are engaged this occurs before the clutch part 45 isstarted up by the magnetic clutch attaching the drive to the press. Thispermits an easy engagement of the solid clutch teeth and therebyminimizes any shock to the revolving By referring to Fig. 12 this drivemay be traced back to the outer end of shaft 3| on which are bracket 21serving as a cam for lifting the outer successively mounted commutator18, gear 19, bearing against a shoulder 88 of the shaft on'the otherside of which is carried the inner race of ball bearing 8|, spacer 82,the inner race of ball bearing 83, spacer 84, the inner race of ballbearing 85 and sleeve 86, which is keyed thereto and provides mountingfor magnetic clutch armature 81. Against these elements bears washer 88and lock nut '89 keeping them in longitudinal relationship. As usualmagnetic clutch armature 81 carries a friction pad 98 for bearingagainst plate 9| which is mounted on steel disc 92, the innercircumference of which is secured to gear 93. Gear 93 is rotatablymounted on ball bearings 83 and 85 and has secured to it a thrust ring94 for taking'care of end thrust when the magnetic clutch is energizedso that plate 9I contacts with friction pad 98. This friction pad 98 isso adjusted that when the magnetic clutch is deenergized there is aseparation between friction pad 98 and plate 9|. Ball bearing 8| ismounted in bracket 95 with its outer race held in place by seal 96.Bracket 95 is secured to variable speed transmission bracket 95 which inturn is secured to the press framework. This locates shaft 3|longitudinally and prevents end motion. Gear 93 meshes with intermediate91 which is carried on stud 98 securely mounted in bracket 95.Intermediate 91 in turn meshes with gear 99 which is carried on shaftI88 of the variable speed device I8I. Variable speed device |8I isdriven from the press in any convenient manner. Thus it is evident thatpower can be supplied from the press through variable speed device I8I,gear 99, intermediate 91, gear 93 and from there to shaft 3| throughmagnetic c'lutch 81 after which power is transmitted to bevel gears 32and 35, 38 and 39 into the spindle as described above.

A suitable cover I82 is provided to enclose the magnetic clutch 81. Aninsulated block I83 is mounted in bracket 95 providing support forelectrical brush contacts I84 and I85 which bear against selector ringson commutator 18. Through keyways I86 in shaft 3| wires maybe run fromthe selector rings on commutator 18 to terminals I81 and I 88 carried onmagnetic clutch 81, thereby carrying electrical power to this clutch.Cover I88 provides protection for these electrical brush contacts. Sinceit is desirable in this case to drive shaft 3| at a speed different fromthat of the spindle speed it is necessary therefore to provide anothercommutator, so driven that a live segment carried on it passes a.stationary point once for each revolution of the spindle I2. A jackshaft I89 is provided mounted in bracket 95 and secured to prevent endmotion on which is rotatably mounted gear I I8 meshing with gear 19carried secured on shaft 3|. Mounted on gear H8 is a commutator IIIcarrying one solid ring I I2 and another ring carrying a short livesegment 248. It will be understood that the ratio of gears of 19 to I I8is such that this commutator rotates one revolution for each revolutionof the spindle I2 so that the shortlive segment 240 may be used inconnection with electrical brush contacts H2 and I04 to control thepoint at which the brush presses the old web against the fresh roll.

By referring particularly to Figs. 1, 15 and 16 it will be seen that inthis embodiment the manher of setting the adjustable speed mechanism IOIis accomplished in exactly the same way as that used in said Patent No.2,048,767, and need not be described in detail here. Briefly it isaccomplished through a projection II4 of spider 8 bearing against aroller H5 carried on arm H5 thereby releasingpawls H1 and permittingmeasuring arm H8 to descend. As the spare roll S is moved in a clockwisedirection by the reel its surface comes in contact with roller H9 whichis carried on measuring arm H8 thereby forcing it up. Pawls I I1cooperate with a ratchet- I20 carried on measuring arm H8 and hold it inposition. Through the shaft I2 I, in a manner described in said PatentNo. 2,048,767, adjustablc speed mechanism I M is regulated to give thesurface of spare roll S the proper speed. Secured to shaft I2I-is an armI22, the free end of which is pivotally connected to link I23, the otherend of which link is connected to lever I24 pivotally mounted onprojection I25 of bracket I20. Bracket I26 is secured to end bracket 21.

The lower end of lever I24 is connected to link- I21, the other end ofwhich is pivotally secured to a small carriage I28 carrying rollers I28which ride on curved projections I29 of bracket I26. These projectionsare substantially concentric with the center of the reel. On carriageI28 is mounted paste position switch I30. :Projection H4 of spider 8operates against the switch roller of paste position switch I30 to closethe contacts therein when this projection reaches the position in whichthe switch I30 is located. By a study of these links and levers it isquite apparent that when measuring arm H8 is lifted to its upperposition paste position switch I30 is bodily moved toward the left asviewed in Fig, 15, whereas, when a small roll is being brought up forsplicing, measuring arm H8 rests at a lower position placing pasteposition switch I30 toward the right hand end of bracket I26. The designis such that within the limits of the machine paste position switch I30in cooperation with projection H4 stops the reel at such a point thatthe distance between the fresh roll and the web is the same fordifferent size rolls. In this manner the device used for settingadjustable speed mechanism IOI to compensate for roll diameters is madeto adjust the position where the reel stops and thereby gives a simplemechanism for this function. It has the further advantage that thisbracket I26 is mounted on end bracket 21 and therefore moves in when thewidth of roll is changed, and in this manner obviates any necessity formoving the monkey switch toe which was employed in said Patent No.2,048,767 and which was mounted on the brush arm.

In eliminating the monkey switch mechanism from the brush arm the brusharm is thereby very much simplified. By referring to Figs. 17, 18, 19,20 and 21, a simple construction of the brush arm is shown therein thearm 23 carries two projections at its upper end which are keyed to shaftI3I, the shaft being rotatably mounted in brackets I32 and I33 securedto the frame of the press. Secured to brush arm 23 are brackets I34which provide rotatable mounting for shaft I35 to which are securedbrush brackets 22, 22 and 22 carrying brushes 2I. Brush bracket 22through collar I42, which is secured to spring rod I31 and pressesagainst poppet I36, to rotate shaft I35 and the brush brackets attachedthereto in a clockwise direction as viewed in Fig. 20. These brushes areprevented from rotating by a latch I41 which hooks over the edge of thecenter brush bracket 22 It will be seen in Figs. 18, 21 and 22 that asolenoid bracket I43 is mounted -on arm 23 and provides a housing forsolenoids I44 and I45, the latter of which is connected by link I46 withlatch I41 which is pivotally mounted on a projection of solenoid bracketI43 and catches on the upper edge of brush bracket 22, preventing itsforward motion. When solenoid I45 is energized, however, this latch isreleased and permits springs I40 to rotate all the brushes 2I in aclockwise direction as viewed in Figs. 20, 21 and 22 pressing therunning web against the fresh roll. It will be noted that there are foursuch brmh springs, the purpose being to regulate the pressure thatbrushes 2I apply to the old web in pressing it against the fresh rollaccording to the width of the roll.

It is apparent from the design of this mechanism that it is intended touse four straps I3 for providing tension. When the width of the roll isdiminished by one page one of these straps is inoperative, whendiminished by two pages; i. e. when a half-roll is used, two of thesestraps are inoperative. The device is so designed that by making thestraps inoperative and latching them up, as many springs are madeinoperative as are straps latched up. This is accomplished as shown inFig. 21 by passing the strap up over the lower end of brush arm 23; i.e., down near the part which serves as a hanger for the knife thenpassing it around stationary projection I48 which is secured to arm 23and placing hook I4 on the end I49 of latch lever I50. Latch lever I50is pivotally mounted on a projection I52 carried at the lower end of arm23 and carries at its upper end a hook latch which cooperates with nutI5I carried on the lower end of spring rod I31. This hooking up of strapI3 rotates latch lever I50 in a clockwise direction as viewed in Fig. 21and thereby holds that particular 1 spring rod I31 in fixed relation sothat, even though brushes 2I move forward, the spring on that particularspring rod is not effective in producing pressure of the running webagainst the fresh roll. Thus in this manner, if one strap is latched up,the pressure on the Web is threequarters of what it would be were allthe springs operating and with two straps hooked up twosprings areautomatically made inoperative.

The bracket I43 which provides a mounting for solenoids I44 and I45 hasa projection I52 similar to the one carrying latch I41 on which ispivotally mounted an arm I 53. The outer end of this arm I53 is suppliedwith a loose link connection to the plunger of solenoid I 44. Nearer itscenter of rotation arm I53 is pivotally connected with a rod I54 whichpasses down and operates against a cam surface I55 secured to knifeshaft I56. Thus when solenoid I44 is energized rod I54 is lifteddisconnecting the surfaces at shaft I3] is such that the raising of arm23 to its inoperative position provides a motion of reset ,rod I58relative to brush bracket shaft I35. Loosely mounted on' shaft I35 is anarm I60 which is pivotally connected to reset rod I58 and carries thatwhen the brush arm is, in its lowered position there is sufficient: playbetween the teeth of clutch I62 and arm I60 to permit brushes 2| to moveforward when the latch is released by solenoid I45. When, however, brusharm 23 is moved to its inoperative position the teeth of arm I6I andclutch I62 contact so that the brush shaft I35 is reset and brush latchI41 is reengaged. Arm I60 carries alower projection I63 on which ismounted a stud I64 rotatably carrying roller I65 for engaging with camI66 secured to knife shaft I56. It is apparent that when arm I63 isrotated in a counterclockwise direction by the lifting of the arm toinoperative position that roller I65 will cooperate with cam I66 andreset knife 24 so that rod I54 reengages the cam I55.

Bracket I32 comprises not only a mounting for brush arm shaft I3I butalso provides support for the brush arm lifting and lowering mechanism.Arm I61 is loosely mounted on shaft I3I on its upper end, the lower endbeing connected with brush arm 23 by shear pin I68. Shaft I69 isrotatably mounted in bracket I32 and carries on one end crank I10 towhich spring rod I1I is pivotally secured by stud I12. Spring rod I1Ipierces poppet I 12' which is pivotally mounted on arm I 61. Spring I13is mounted on spring rod HI and its pressure adjusted by jam nut I14.Secured to spring rod I1I is collar I15 which, when it bears againstpoppet I12 as crank I10 is rotated in a clockwise direction as in Fig.23, operates to lift brush arm 23 from the operative to the inoperativeposition. In the position shown in Fig. 28 spring' I13 exerts pressureagainst poppet I12 and through arm I61 holds brush arm 23 in its loweredoperating position. This position is determined by an adjustable stopI16 carried in arm I61 and bearing against stop pin I11 carried inbracket I32. Thus should any undue strain be placed on arm 23 shear pinI68 will break, permitting the arm to swing free in any direction andthereby obviating damage thereto. Thus it is seen that the lifting andlowering of the brush arm is accomplished by partial rotation of shaftI69 which carries on its one end crank I10. The other end of this shafthas secured thereto'worm wheel I18 which meshes with worm I19. Worm I19is secured to and rotates with shaft I80 to which is also secured wormwheel I8I meshing with worm I82 secured to the armature of motor I83.These parts are all mounted on bracket I32. Thus by energizing motor I83to run in the one direction, brush arm 23 is lowered from inoperative tooperative position. When the brush arm has performed its functions therotation of motor I83v in the opposite direction will then move brusharm 23 from its operative to its inoperative position. The outer righthand end of shaft I69 as viewed in Fig. 1'7 carries a spiral gear I84which meshes with gear I85 carried on shaft I86. This shaft I86 connectson the one end with rheostat I81, which serves to reduce the voltage onthe magnetic clutch as the newly spliced roll is broughtinto the tensionstraps, and on the other end to multiple switch I88 which performsfunctions that will be described later, such as limiting the travel ofmotor I83 in both directions, placing power on the magnetic clutch andvarious other functions. In Fig. 1 measuringrelay J89 is shown mountedalongside adjustable speed mechanism IOI and serves the same purposethat it does in said Patent No. 2,048,767. Its construction is identicalwith that in said patent and therefore forms no part of this inventionexcept in combination. Its operation will be fully described in adescription of the wiring diagram.

Referring to the electrical diagram the operation of this machine may betraced in the following manner: l

When the main switch 22I is closed, electrical power is then connectedfrom the main lines LI and L2 to lines I90 and I04 respectively. Thisputs power on field coil 222 of motor I83 through lines I04 and I90running thereto, on field coil 223 of reel motor 9 through lines I04 andI90 -and on field discharge resistance 224 through lines I04 and I90With the brush in its inoperative position as shown in dotted lines,Fig. 1, paper is used from the running roll until in the opinion of theoperator it is time to lower the brush arm and set the pasting mechanismin readiness. roll has decreased to some eight or ten inches indiameter, by the pressing of the lower button in station 225. Thispressing of the lower button in-station 225 connects the contact I90,which is one side of the power, with contact 202 which may be traced toterminal 202 thence to contact 202 in arm lowering switch 228 which whenthe reel is in the proper position for lowering the brush arm is closedso that contact 202 is connected with contact 200. Line 200 may betraced to terminal 200 and thence to contact 200 on the lower stopswitch in multiple switch I88. With the arm in the raised position thislower stop switch is closed connectingcontact 200 with contact I99.Contact I99 leads back through wire I99 to terminal I99 and from thereto one side of lower coil 229, the other side of which is connected towire 2I8 and through the contact of thermal relay 221, which is normallyclosed, to contact I04 which is the other side of the line. Thisconnection energizes coil 229 closing contacts I90 and 209, I90 and 2I3and opens contacts 209 and 2I1. The closing of contacts I90 and 2I3establishes a hold-in circuit for the lower coil 229 such that eventhough lower button in station 225 is released, opening contacts I90 and202 connection to line I90 is still established through I90 to 2I3 ofthe lower contactor through line 2I3 to terminal 2I3 and from there tocontact 2I3 which is an upper contact of tension button in station 225and is normally connected with contact 200. Line 200 runs to terminal200 and from there to lower stop switch in multiple switch I88 where itconnects with line I99 as has been described above. Contact 209 isconnected to terminal 209 and from there by wire 209 to one brush of thearmature of motor I83 thereby placing power on one brush of the motor.The other brush 2I0 may be traced through wire 2 I to terminal 2I0 andfromthere to the cen- This is done, when the running ter of the "raisecontactor, the lower end of which connects with contact M8 and throughseries resistance 230 to contact 2I5 and from there to one side ofthermal relay coil 221, through thermal relay coil 221 to contact 208and from there through terminal 208' to one side of series field 23I ofmotor I83 the other side of which is connected to line I04. In thismanner power is placed on the armature of motor I83 causing it to rotatein such a manner that the brush arm is lowered. It has been found inactual operation that, by lowering the brush arm prior to splicing,increased wrap is obtained around the running butt. Provisions are madein this case for permitting the brush arm to be lowered a slight amountat a time so that the advantage of this added tension may be obtainedwhen desired. Thisalternate manner of lowering the brush arm is providedin a "tensl0n button in station 225 which, when pressed, connectscontacts I90 and 202 exactly as is done by the lower buttonaccomplishing the same result exclose these contacts it opens contacts 2I3 and 200. 7

It is apparent by tracing from the lower contactor the contact 2I3,which connects with line I when the lower contactor operates, through toits terminal to the top of "tension button in station 225 throughcontact 200 and a series of connections described above, that thepressing of the tension button opens the holdin circuit on the lowercoil contactor. Thus, so long as the tension" button is held down, thearm will be lowered but the instant the connection is broken betweencontacts I90 and 202 the lowering of the arm will cease.

During the process of lowering the brush arm, multiple switch I88, whichis geared thereto, is rotated so that the magnetic clutch" contactcloses, connecting contact I90, which is one side of the line, withcontact I91. By tracing line I91 it will be seen to go to terminal I91and thence to the center of the arm of rheostat I81. Connection is madethrough this arm and the rheostat to the outcoming wire I 05 whichreturns to terminal I05 and thence to brush I05 bearing against the ringcarried on commutator 18. This ring is connected to one terminal ofmagnetic clutch 81 the other terminal being connected to ring I04against which bears brush I04 connected with line I04, which is theother side of the power. It is apparent then that a reduced voltage isplaced on magnetic clutch 81 such that as the arm of rheostat I81rotates in a counterclockwise direction, as shown in the wiring diagram,resistance will be removed from this circuit until such time as therheostat arm bears against contact I05 thereby placing full voltage onmagnetic clutch 81. The energizing of clutch 81 through gearingdescribed above brings the incoming roll up to speed.

As the brush-arm continues to be lowered "forward reset contacts I04 andI93 in multiple switch I88 are opened. The reclosing of these contactsas the brush arm is raised performs a function which will be describedlater. Just before the brush arm reaches its lower limit, i. e. beforethe motor I83 is stopped, the reel operation" contact in multiple switchI88 closes contacts I90 and 2, the latter of which may be traced toterminal 2II thence to one side of reel operation coil 232 the otherside of which is connected to line wire I 04. This coil is therebyenergized closing contacts 2 and 2I2, I93 and 204. The closing ofcontacts 2 and 2I2 establishes a circuit through line 2I2 to tenninal2I2 and from there through wire 2| 2'- to a contact 2I2 in tensionposition" switch 233 which is normally closed connecting contacts 2I2with line wire I90. This serves as a hold-in circuit for reel operationcoil 232. As will be described later, this contact in tension positionswitch 233 is held closed until after the splice has been made and thereel rotated to the proper position to give normal operating tension.Contact 204 may be traced to terminal 204 ind from there to one side ofcoil 234, the other side of which is connected'to line wire I90. Thiscoil is the forward operating coil of reel motor 9. Contact I93 may betraced to terminal I93 and also to a normally closed contact I93 on thereel stop" contactor where it is connected with contact I04 which is oneside of the line. Thus it is seen that when contacts I93 and 204 areclosed, forward operating coil 234 becomes energized closing contacts2I9 and I04, 220 and I90. Contacts I04 and I90 constitute the line wireswhile contacts 2I9 and 220 feed the armature of reel motor 9, causing itto rotate in such a direction as to bring incoming rolls, carried by thereel, toward the brush arm. This rotation of the reel continues untilthe projection II4 shown in Fig. 15 closes contacts I90 and 2I4 in"paste position switch I30. Contact I90 constitutes one side of the lineand when it is connected to 2I4 through paste position switch I30 thecircuit may be traced through line 2I4 to terminal 2I4 and from theretoone side of reel stop coil 235, the other terminal of which is connectedto line wire I04. This energizes reel stop coil 235 closing contacts I92and I9I opening contacts I93 and I04. The opening of contacts I93 andI04 breaks the circuit feeding forward operating coil 234 the'rebydeenergizing that coil and causing contacts 2I9 and I04, 220 and I90 toopen, removing power from reel motor 9 and causing it to cease rotation.This stops the reel with the fresh roll in proper position for pasting.The closing of contacts I9I and I92 sets up one of the conditionsdemanded before a splice is made, i. e. that the roll is in the properlocation for splicing. That particular circuit will be traced later.

When the brush arm is up, the reel safety" switch in multiple switch I88is closed connecting contacts I04 and MI but, with the arm down,

contacts I04 and 20I are not connected. By

tracing line 20I it will be found to go to terminal 20I on the controlboard and thence to one side each of the forward and reverse buttonscarried in station 226. The other contact of the reverse button instation 226 is contact 205 and is connected with terminal 205 and thenceto one side of the reverse reel coil 236, the other side being connectedto line wire I90. It is apparent that when brush arm 23 is in thelowered or operative position with the reel safety contacts I04 and MIopen in multiple switch I88 it is impossible to operate the reverse reelcoil 236 by making contacts 20I and 205 in station 226. This serves as asafety to prevent motion of the reel with possible damage to themechanism. It is similarly true that making of contacts 20I and 204 bythe "forward button in station 226 that it is impossible by this meansto operate forward reel operating coil 234. The operation of brush armmotor I83 in a direction to lower the brush arm ceases when the lowerstop limit in multiple switch I88 opens the contacts I99 and 200. Thisis apparent since contact I99 as traced above goes through line I 89' toterminal, I99 and from there to one'slde of "lower contactor-coil 229.Contact 200 through a similarly numbered terminal is connected throughtension button in station 225 to terminal ,2I3 which runs through wire2I3 to a similarly numbered terminal on the control board and fromgthereto a movable contact operated bylower coil 229 and there closed withline wire I90. It is evident then that the opening of contacts I99 and200 in the lower stop limit in multiple switch I88 breaks the circuitenergizing lower coil 229 permitting contacts I90 and 209, I90 and 2I3to open. The opening of contacts 209 and line wire I90 disconnects thepower from brush arm motor I83 thereby stopping its rotation. By thistime the incoming roll is running at synchronous speed with the web, itis in the proper position with relation to the brush and the brush armis in its operative position. As the running roll R diminishes in size,the operator stands in readiness to set oif the pasting mechanism. Whenin his opinion the butt is almost exhausted paste button in station 225is pressed closing contacts H2 and I92. I92 may be traced through lineI92 to a termito the reel stop contactor'where it has been previouslyconnected with terminal I9I Terminal IQIWma-y be traced to terminal I9Iand also to one side of resistance 231, the other side of which isconnected by contact I94 to one side of brush hold-in coil 238, theother side of .which is connected to line wire I90. From terminal I9Ilines I9l may be traced also, one each to terminal of brush solenoid I45and measuring relay solenoid 239 the other sides of which are connectedto line wire I90 paste button in station 225 contact 2 may be traced toterminal I I2 on the control board and from there to brush II2 bearingagainst a ring II2 of commutator III. From ring II2 there is a jumperacross to a small live segment 240 which during each revolution ofcommutator III passes under line wire brush I04. Thus the very firsttime brush I04contacts live segment 240 after the paste button has beenpressed a circuit is established through I04, live contact 240,commutator ring H2 brush II2 to terminal II2 through paste button instation 225 to contact I92 to terminal I92 and from there through 'reelstop contactor to contact I9l which goes to terminal I9I and theredivides to energize brush solenoid I45, measuring relay solemold 239 and"brush hold-in coil 238. Thus simultaneously brush latch I4! is releasedso that pasting brush 2| presses the running web against the incomingroll, measuring relay solenoid 239 is operated to start measuring relayI89 in operation, as is fully described in said application Serial No.591,077, Patent No. 2,048,767, and brush hold-in coil 238 is energizedto close contacts I04 and I92. Since contact I04 is one side of the lineit is apparent that its closure with I92 establishes a hold-in circuitthrough "reel stop contactor to contact I9I and thereby sustains thepower on brush arm solenoid I45, measuring relay solenoid 239 and brushhold-in coil 238.

The operation of measuring relay solenoid 239 withdraws plunger rod 248allowing the drum of the measuring relay to rotate in direct proportionto the speed of the press. This occurs, of course, the instant thepasting brush 2i is dropped. After a predetermined length of paperContact Returning now to has been measured oil, that is, sufiicientiorthe pasted points of the incoming roll to be surely 1 attached to therunning web, a live contact segment I90 passes under. the brush contactI95 of the measuring relay which may be found by tracing wire I95. torun to terminal I95 on the control board and from there to one side ofknife solenoid I44 the other side of which is connected to line wire I04This energizes knifesolenoid I44 which lifts rod I54 permitting knife 24to rotateinto the web to sever it. As the measuring relay continues torotate, another small live segment I90 passes under brush I96 which maybe traced by wire I96 to terminal I98 on the control board. From thereit divides, one wire running to a normally open movable contact on theraise contactor of the control board. A second wire I9Iif may be tracedto multiple switch I88 where it terminates in contact I96 of the raisestop limit. With the arm lowered this switch is closed connectingcontact I96 with contact I98 which latter may be traced through line I98to terminal I98 on the control board and from there to -one side ofraise contactor coil 24I, the other side of which is connected tocontact 2I8 which, through the contact of thermal relay 221, isconnected to line wire I04. This series of connections energizes coil24I closing contacts I90 and H0, I90 and I96, opening contacts 2I0 and2I6. The closure of contacts I90 and I96 acts as a hold-in circuit forthe coil 24I which may be traced to terminal I99 through wire I96 toraise stop limit in the multiple switch I88 where it connects withcontact I98 which returns to terminal I98 and from there to one side ofcontactor coil 24L Thus, once the contact is made through brush I96 onmeasuring relay I89, it is held in as described. The connection of linewire I90 to 2) may be traced through terminal 2 I0 to one side of brusharm motor I83 the other side of the motor contact 209 may be traced toterminal 209 thence to the middle of lower contactor where it connectswith contact 2H and from there to one side of resistance coil 242, theother side of which is connected to contact 2I5 and from there tothermal relay 221, the other side of which is connected to contact 208which runs to terminal 2118 and thence to one side of the seriesfield23| of the brush arm motor, the other side of which is connected to linewire I04. This establishes a circuit which causes motor I83 to revolvein such a direction that the brush arm is moved from operative toinoperative position. It will be noticed that in station 225 analternate means for raising the brush arm is provided'by a raise buttonwhereby the pressing of this button will connect line wire I90 withcontact I96 which runs to terminal I96 and in the same manner asdescribed will energize coil 24I to cause motor I83 to rotate and raisethe brush arm. As the brush arm is raised forward reset switch inmultiple switch I88 closes contacts I04 and I93,

the latter of which may be traced through line I93 to a terminal I93 andfrom there to the reel operated contactor on the control board where itconnects with contact 204 which latter connects through wire 204 toterminal 294 and from there to one side of forward reel operating coil234, the other side of whch is connected to line wire I90, This seriesof connections energizes coil 234 closing contacts 2I9 and I04, 220 andI90 which causes reel motor 9 to operate to move the newly spliced rolltoward the tension straps I3. As the reel moves forward projection

